body{
    min-width: 1400px;
}
.xinxi>input{
    height: 30px;
    width: 280px;
}
.dropdown>button{
    width: 280px;
   display: inline-block;
}
.xinxi{
height: 50px; 
display: flex;
align-items: center;  
}
.xinxi span{
    margin-right: 10px;
}
.body-right-first-center{
    display: flex;
    justify-content: space-between;
}
.last-div>span{
    height: 30px;
    line-height: 30px;
    width: 60px;
    border: 1px solid red;
    display: inline-block;
    text-align: center;
    border-radius: 5px;
    background: blue;
    color: white;
}
.table {
    margin-top: 20px;
}
.table>tr>td{
    border: 1px;
    padding: 6px;
}
nav{
    position: absolute;
    height: 40px;
    padding: 0;
    margin: 0;
    left: 459px;
    bottom: -95px;  
}
nav>.pagination{
    margin: 0px;
}